What is CVE-2022-34520?

CVE-2022-34520 is a medium-severity vulnerability in Radare Radare2, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2022-07-22.

How severe is CVE-2022-34520?

Medium severity. CVSS v3 base score is 5.5 out of 10.

NULL pointer dereference in Radare Radare2

CVE-2022-34520

Radare2 v5.7.2 was discovered to contain a NULL pointer dereference via the function r_bin_file_xtr_load_buffer at bin/bfile.c. This vulnerability allows attackers to cause a Denial of Service (DOS) via a crafted binary file.

Published 2022-07-22 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.003 (19.5th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 19th percentile — 19.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000

Affected products

Radare Radare2 — versions 5.7.2

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

github.com/radareorg/radare2/issues/20354 (Exploit, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2022-34520?: CVE-2022-34520 is a medium-severity vulnerability in Radare Radare2, classified under NULL Pointer Dereference. CVSS score: 5.5/10. Published 2022-07-22.
How severe is CVE-2022-34520?: Medium severity. CVSS v3 base score is 5.5 out of 10.